Visual Studio: Difference between revisions

==== Multiboot ====

To be booted by GRUB, you can make your kernel multiboot. THis involves the embedding of a multiboot header in the first 8K of the image.

This can be done as follows:

<source lang="cpp">

//Entry point goes here

//The good ol' multiboot header

#pragma pack(push,1)

struct MULTIBOOT_HEADER {

uint32_t magic;

uint32_t flags;

uint32_t checksum;

uint32_t header_addr;

uint32_t load_addr;

uint32_t load_end_addr;

uint32_t bss_end_addr;

uint32_t entry_addr;

};

#pragma pack(pop)

#pragma code_seg(".a")

__declspec(align(4)) MULTIBOOT_HEADER header {

0x1BADB002,

0x10003,

-(0x1BADB002+0x10003),

(uint32_t)&header - BASE_ADDR + LOADBASE,

LOAD_BASE,

0,

0,

(uint32_t)&entry - BASE_ADDR + LOADBASE

};

</source>